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Note E - Leases (Details Textual) - USD ($) | 1 Months Ended | 3 Months Ended
--- | --- | ---
Oct. 31, 2019 | Jun. 30, 2021
Operating Lease, Monthly Payments |  | $ 4,878
Finance Lease, Liability, Payment, Due, Total |  | $ 353,890
Operating Lease, Weighted Average Remaining Lease Term (Year) |  | 2 years 9 months 18 days
Finance Lease, Weighted Average Remaining Lease Term (Year) |  | 3 years 3 months 18 days
Operating Lease, Weighted Average Discount Rate, Percent |  | 7.00%
Finance Lease, Weighted Average Discount Rate, Percent |  | 1.90%
Heavy-duty Forklift [Member] |  |
Lessee, Finance Lease, Term of Contract (Year) | 5 years |
Finance Lease, Liability, Payment, Due, Total | $ 518,616 |
Finance Lease, Monthly Payment | $ 9,074 |

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